Device for introduction of gases into reaction vessels containing fluids
US4053147A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Jan 14, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D1/005
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A vessel which, when in use, is subject to thermal stress, and which includes a device for introduction of gas through the wall of the vessel, the device comprising a metal sleeve fastened to the outer face of the wall of the vessel in an adjustable and easily exchangeable manner by a combination of screws and spring washers, and a gas-permeable body of fire-resistant material which is mounted adjustably and exchangeably in the metal sleeve under spring pressure. Either a major portion of the gas-permeable body is formed as a frustum of a cone, which has a short cylindrical portion on its end of larger cross section, or the gas-permeable body consists of two cylindrical portions of different cross section. The spring pressure is exerted by at least one dished spring column consisting of a series of pairs of oppositely oriented dished spring washers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.